From 8d8f17a4ff0f4e8b78a9e097aed816392e37084d Mon Sep 17 00:00:00 2001
From: Wim Taymans <wim.taymans@gmail.com>
Date: Wed, 18 May 2005 09:59:28 +0000
Subject: [PATCH] gst/ffmpegcolorspace/gstffmpegcolorspace.c: Enable buffer
 alloc passthrough if the source and dest formats are the same.

Original commit message from CVS:
* gst/ffmpegcolorspace/gstffmpegcolorspace.c:
(gst_ffmpegcsp_getcaps), (gst_ffmpegcsp_configure_context),
(gst_ffmpegcsp_setcaps), (gst_ffmpegcsp_bufferalloc),
(gst_ffmpegcsp_chain):
Enable buffer alloc passthrough if the source and dest
formats are the same.
---
 ChangeLog                                  | 9 +++++++++
 gst/ffmpegcolorspace/gstffmpegcolorspace.c | 8 +++++++-
 2 files changed, 16 insertions(+), 1 deletion(-)

diff --git a/ChangeLog b/ChangeLog
index 7ddaaad12c..cd0d35b39c 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,12 @@
+2005-05-18  Wim Taymans  <wim@fluendo.com>
+
+	* gst/ffmpegcolorspace/gstffmpegcolorspace.c:
+	(gst_ffmpegcsp_getcaps), (gst_ffmpegcsp_configure_context),
+	(gst_ffmpegcsp_setcaps), (gst_ffmpegcsp_bufferalloc),
+	(gst_ffmpegcsp_chain):
+	Enable buffer alloc passthrough if the source and dest
+	formats are the same.
+
 2005-05-17  Wim Taymans  <wim@fluendo.com>
 
 	* ext/ogg/gstoggdemux.c: (gst_ogg_pad_internal_chain),
diff --git a/gst/ffmpegcolorspace/gstffmpegcolorspace.c b/gst/ffmpegcolorspace/gstffmpegcolorspace.c
index fd4a4bd511..9c247a5d95 100644
--- a/gst/ffmpegcolorspace/gstffmpegcolorspace.c
+++ b/gst/ffmpegcolorspace/gstffmpegcolorspace.c
@@ -394,7 +394,12 @@ gst_ffmpegcsp_bufferalloc (GstPad * pad, guint64 offset, guint size,
 
   space = GST_FFMPEGCSP (GST_PAD_PARENT (pad));
 
-  buf = gst_pad_alloc_buffer (space->srcpad, offset, size, caps);
+  if ((space->from_pixfmt == space->to_pixfmt) &&
+      space->from_pixfmt != PIX_FMT_NB) {
+    buf = gst_pad_alloc_buffer (space->srcpad, offset, size, caps);
+  } else {
+    buf = NULL;
+  }
   return buf;
 }
 
@@ -409,6 +414,7 @@ gst_ffmpegcsp_chain (GstPad * pad, GstBuffer * buffer)
 
   GST_STREAM_LOCK (pad);
 
+  GST_DEBUG ("from %d -> to %d", space->from_pixfmt, space->to_pixfmt);
   if (space->from_pixfmt == PIX_FMT_NB || space->to_pixfmt == PIX_FMT_NB)
     goto unkown_format;